Pith Number

pith:DTYCVSXI

pith:2020:DTYCVSXIQRJZZLPVIKQP5MCMPW

not attested not anchored not stored refs pending

A stochastic subspace approach to gradient-free optimization in high dimensions

Alireza Doostan, David Kozak, Luis Tenorio, Stephen Becker

arxiv:2003.02684 v2 · 2020-03-04 · math.OC

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DTYCVSXIQRJZZLPVIKQP5MCMPW}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T08:40:02.458328Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1cf02acae884539cadf542a0feb04c7d9b3d4ba9baf2422c4aa6e315f395f975

Aliases

arxiv: 2003.02684 · arxiv_version: 2003.02684v2 · doi: 10.48550/arxiv.2003.02684 · pith_short_12: DTYCVSXIQRJZ · pith_short_16: DTYCVSXIQRJZZLPV · pith_short_8: DTYCVSXI

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/DTYCVSXIQRJZZLPVIKQP5MCMPW \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 1cf02acae884539cadf542a0feb04c7d9b3d4ba9baf2422c4aa6e315f395f975

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f1b0abba8a7f2d2078e6dd22bf083e8e60ec9495d5a5cf6ad066b1d12c66a678",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2020-03-04T18:04:48Z",
    "title_canon_sha256": "d9ff3793d676e8da23cb434fef81c767ac53dc50185bdc0ce327770d841eeca5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.02684",
    "kind": "arxiv",
    "version": 2
  }
}